The unit integrates a switch disconnector, a contactor ordered separately, and the push-button controls (white start, black stop, red rotary emergency stop) into a single polycarbonate box. Cable entry is via four knockouts: two Pg 13 and two Pg 16 at the top, with the same pattern at the bottom. The enclosure also meets IK07 impact resistance per IEC 60529.
The 18 A AC-3 rating governs the maximum full-load current of the motor this starter can handle under starting conditions. IP55 and IK07 mean the enclosure withstands hose-directed water and moderate mechanical impact, making it appropriate for pump stations, conveyor lines, and general industrial environments where occasional washdown is routine. The polycarbonate body is non-corrosive but should not be exposed to solvents or continuous UV without checking compatibility.